Finding the Third Proportional to 1,870,146 and 4,090,212

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,146 : 4,090,212 = 4,090,212 : x
2. Step 2: Convert to fraction form
   1,870,146/4,090,212 = 4,090,212/x
3. Step 3: Cross multiply
   1,870,146x = 4,090,212 × 4,090,212
4. Step 4: Simplify right side
   1,870,146x = 16,729,834,204,944
5. Step 5: Solve for x
   x = 16,729,834,204,944/1,870,146
6. Step 6: Final answer
   x = 8,945,736.97